Loratadine vs Metronidazole

## Loratadine vs Metronidazole: Overview

This comparison examines the pharmacological differences between **Loratadine** and **Metronidazole**.

## Mechanism of Action

**Loratadine**: Second-generation H1 antihistamine with minimal CNS effects.

**Metronidazole**: Forms cytotoxic free radicals that damage bacterial DNA.

## Pharmacokinetics

**Half-life**: Loratadine — 8 hours; Metronidazole — 8 hours.

## Chemical Properties

**Molecular Formula**: Loratadine — C22H23ClN2O2; Metronidazole — C6H9N3O3.

**Molecular Weight**: Loratadine — 382.8800 g/mol; Metronidazole — 171.1540 g/mol.

**Type**: Loratadine — Small molecule; Metronidazole — Small molecule.